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【答案】应助回帖
夏露相随(金币+30, 翻译EPI+1): 满意，真是太感谢了 2011-07-12 17:46:41
SANS measurement was carried out at the NG7 at the NIST Center for Neutron Research of the National Institute of Standards and Technology. 小角中子散射测量在美国国家标准和技术研究院中子研究中心的NG7进行。Incident neutron wavelength of 6 Å , with varying sample-to-detector distance of 1, 15 and 4.5 m detector 25 mm offset yields a scattering range of 0.0009 Å-1< Q < 0.4 Å-1, whereq =4π/ λsin(θ/2) is the magnitude of momentum transfer vector,and q is the scattering angle. 入射中子波长为6 Å，样品-检测器距为1, 15 and 4.5 m，检测器补偿为25mm时，得到散射范围为0.0009 Å-1< Q < 0.4 Å-1，其中Q=4π/ λsin(θ/2)为动量转移矢量的大小，θ为散射角。After corrected for background and detector efficiency, and converted to an absolute scale using direct beamintensity, the 2D intensity was circularly averaged to yield the total structure factor, S(q) [42]. 在对背景和检测器效率进行校正后，二维强度以直接光束亮度转化为绝对标度，循环平均得到整体结构因子S(q)。
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